<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../vue.js"></script>

</head>

<body>
    <div id="app">
        <h1>{{count}}</h1>
        <!-- prevent修饰符可以阻止默认事件,常见于form表单的submit事件 -->
        <button @contextmenu.prevent="">右键</button>
        <br>
        <!-- .stop修饰符 阻止传播 -->
        <div @click.stop="fn1">outer1
            <div @click="fn2">inner</div>
        </div>
        <br>

        <!-- .once修饰符:一次性事件 -->
        <button @click.once="fn1">触发fn1</button>

        <br>

    <input type="text" @keyup.13="fn1"> <br>
    <input type="text" @keyup.enter="fn2">
    <input type="text" @keyup.space="fn1">
    <input type="text" @keydown.tab="fn2">
    <input type="text" @keydown.esc="fn1">
    </div>
    <script>
        Vue.config.productionTip = false;
        const vm = new Vue({
            el: "#app",
            data() {
                return {
                    count: 0
                }
            },
            methods: {
                fn1() {
                    console.log("fn111");
                },
                fn2() {
                    console.log("fn2");
                }
            }
        })
    </script>
</body>

</html>